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Finding the Fourth Proportional to 39,963.48, 60,013.26 and 38,291.64

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Solution

The fourth proportional to 39,963.48, 60,013.26 and 38,291.64 is: 57,502.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,963.48 : 60,013.26 = 38,291.64 : x
  2. Step 2: Convert to fraction form
    39,963.48/60,013.26 = 38,291.64/x
  3. Step 3: Cross multiply
    39,963.48x = 60,013.26 × 38,291.64
  4. Step 4: Simplify right side
    39,963.48x = 2,298,006,147.15
  5. Step 5: Solve for x
    x = 2,298,006,147.15/39,963.48
  6. Step 6: Final answer
    x = 57,502.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.